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| author | Nick Crews <ncrews@chromium.org> | 2019-04-18 10:43:12 -0600 |
|---|---|---|
| committer | Sebastian Reichel <sre@kernel.org> | 2019-05-02 01:11:25 +0200 |
| commit | ba6cc85084178e5bce50f6a00411e457c21c47df (patch) | |
| tree | 1bffdbc4457385c1b48b5e588d2a8e4ce5b8b33c /Documentation/ABI | |
| parent | 9274c78305e12c5f461bec15f49c38e0f32ca705 (diff) | |
| download | lwn-ba6cc85084178e5bce50f6a00411e457c21c47df.tar.gz lwn-ba6cc85084178e5bce50f6a00411e457c21c47df.zip | |
power: supply: core: Add Standard, Adaptive, and Custom charge types
Add "Standard", "Adaptive", and "Custom" modes to the charge_type
property, to expand the existing "Trickle" and "Fast" modes.
I am adding them in order to support a new Chrome OS device,
but these properties should be general enough that they can be
used on other devices.
The meaning of "Standard" is obvious, but "Adaptive" and "Custom" are
more tricky: "Adaptive" means that the charge controller uses some
custom algorithm to change the charge type automatically, with no
configuration needed. "Custom" means that the charge controller uses the
POWER_SUPPLY_PROP_CHARGE_CONTROL_* properties as configuration for some
other algorithm.
v5 changes:
- Split up adding the charge types and adding the
POWER_SUPPLY_PROP_CHARGE_CONTROL_START_THRESHOLD and
POWER_SUPPLY_PROP_CHARGE_CONTROL_END_THRESHOLD properties into
two different commits.
v4 changes:
- Add documentation for the new properties, and add documentation for
the the previously missing charge_control_limit and
charge_control_limit_max properties.
Signed-off-by: Nick Crews <ncrews@chromium.org>
Reviewed-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-power | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-power b/Documentation/ABI/testing/sysfs-class-power index 5e23e22dce1b..544c4e0ef8b6 100644 --- a/Documentation/ABI/testing/sysfs-class-power +++ b/Documentation/ABI/testing/sysfs-class-power @@ -119,10 +119,16 @@ Date: July 2009 Contact: linux-pm@vger.kernel.org Description: Represents the type of charging currently being applied to the - battery. + battery. "Trickle", "Fast", and "Standard" all mean different + charging speeds. "Adaptive" means that the charger uses some + algorithm to adjust the charge rate dynamically, without + any user configuration required. "Custom" means that the charger + uses the charge_control_* properties as configuration for some + different algorithm. - Access: Read - Valid values: "Unknown", "N/A", "Trickle", "Fast" + Access: Read, Write + Valid values: "Unknown", "N/A", "Trickle", "Fast", "Standard", + "Adaptive", "Custom" What: /sys/class/power_supply/<supply_name>/charge_term_current Date: July 2014 |